A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5930-01-406-4998
NSN 6145-01-449-5734
NSN 5935-01-495-9724
NSN 5975-01-230-4994
NSN 5960-01-010-3083
NSN 6650-00-491-7920
NSN 6650-01-145-5173
NSN 5950-01-634-0677
NSN 6220-01-322-8450
NSN 2925-00-477-2654
NSN 5985-01-361-8982
NSN 6105-01-534-8263